Postintervention monitoring of peripheral arterial disease wound healing using dynamic vascular optical spectroscopy

Nisha Maheshwari, Alessandro Marone, Mirella Altoé, Stephen H.K. Kim, Danielle R. Bajakian, Andreas H. Hielscher

Research output: Contribution to journalArticlepeer-review

Abstract

Significance: Due to the persistence of chronic wounds, a second surgical intervention is often necessary for patients with peripheral arterial disease (PAD) within a year of the first intervention. The dynamic vascular optical spectroscopy system (DVOS) may assist physicians in determining patient prognosis only a month after the first surgical intervention. Aim: We aim to assess the DVOS utility in characterizing wound healing in PAD patients after endovascular intervention. Approach: The DVOS used near-infrared light (670 < λ < 850 nm) to record hemodynamic response to a cuff inflation in 14 PAD patients with lower limb ulcers immediately before, immediately after, and at a first follow-up 3 to 4 weeks after intervention. Ankle-brachial index (ABI) and arterial duplex ultrasound (A-DUS) measurements were obtained when possible. Results: The total hemoglobin plateau time differed significantly between patients with ulcers that reduced in size (N = 9) and patients with ulcers that did not (N = 5) 3 to 4 weeks after intervention (p value < 0.001). Data correlated strongly (89% sensitivity, 100% specificity, and AUC . 0.96) with long-term wound healing. ABI and A-DUS measurements were not statistically associated with wound healing. Conclusions: This pilot study demonstrates the potential of the DVOS to aid physicians in giving accurate long-term wound healing prognoses 1 month after intervention.

Original languageEnglish (US)
Article number125002
JournalJournal of biomedical optics
Volume27
Issue number12
DOIs
StatePublished - Dec 1 2022

Keywords

  • dynamic optical spectroscopy
  • near-infrared spectroscopy
  • peripheral arterial disease
  • revascularization
  • wound healing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Biomaterials
  • Biomedical Engineering

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